TheClimateChanger

Why are you guys acting like this? I didn’t do anything to any of you. That is a FAKE graphic. Calling for me to banned for pointing that out? Like wtf?

Me? Are you joking? The context I provided about that chart is 100% correct. The claim that this is the “23rd lowest percentage of 90 degree days” is 100% made-up BS.

No, it’s not a legitimate trend. It doesn’t account for changing distribution of stations as I stated above. There are many more high elevation sites today that seldom or never reach 90F, so, of course the percentage of days at all sites will go down. That’s not even talking about the non-climatic biases that would have favored the older era. Maybe there were more, but that’s not the way to do that analysis.

See @bluewave and @donsutherland1 and others, he is a troll. This is the dumbest, most misleading graph produced by Tony Heller. It very well may be that there were a higher percentage of days in the Dust Bowl over 90F, but this graphic is a HOAX that is RIGGED to produce that result. It's always going to show that pattern. The distribution of stations has changed, favoring more high elevation and cooler microclimates that weren't represented much in the early decades. Moreover, time of observation changes result in an increase in 90F days, as there would often be additional days counted as a result of taking observations at 5pm or 6pm (e.g., day has high of 95F, at 5 pm, the thermometer is reset with the temperature reading 92F. The next afternoon reaches 84F, but the high is the observation temp of 92F). This is NOT an official NOAA/NCEI graphic, and NOT the right way to present climate data. Which is IRONIC since it originates from a loser (Tony Heller) who is always complaining about "corrupt" scientists. A legitimate analysis would at least make an effort at gridding the data to eliminate effects of a changing distribution of constituent stations and would apply an adjustment for non-climatic biases in the dataset. Of course, Tony never does this.

That's a misleading graphic. The distribution of stations has changed over time with more high elevation sites across the country than there were in the past. Moreover, most sites had afternoon/evening observation times before the 1960s-1990s, which results in somewhat of an overcount on metrics like these (e.g., day has high of 95F, at 5 pm, the observation temp is 92F... the next day's high is recorded as 92F, even if it might have only reached 84F).

Looks to stay pretty warm into early next week, but later in the week cooler air is set to infiltrate. August should begin on a mild note, but I would expect hotter weather to return at some point.

Currently at 8 days at or above 90F for the season at PIT. Looks like generally upper 80s to around 90 through Tuesday. We'll see if we can add some to that tally. Cooler air set to infiltrate late next week, with a milder start to August. I do expect another hot wave at some point in later August.

Widening out the view. A number of daily record high minima were observed yesterday at long term "threaded" sites... just looking her at places with 100-150+ years of record generally. There were certainly many more at cooperative observer sites and locations with shorter PORs. A number of locations saw low temperatures within 1 or 2F of record highs, and for those locations it was generally the 2nd or 3rd highest low for the date. Records: Rockford (74, tied) South Bend (74, tied) Huntington, WV (75) Paducah, KY (78) Meridian, MS (78) Jackson, MS (78, tied) Among maximum temperatures, not many records. Syracuse, New York set a new daily record of 94F. Several locations saw their 2nd or 3rd highest max temperature, but still fell well short of the record. We were competing with a 1934 heat episode that brought all-time record heat to some locations.

High temperatures yesterday across Southeast Lower Michigan. Reported highs ranged from 92 at Port Hope, Port Austin, Cass City and Linden, to 102F at Grosse Pointe Farms. The latter looks a little high, but I'm not sure of the microclimate there. The next closest (not shown) was 98F at Selfridge ANG Base. That site is on xMacis, but for some reason, the data doesn't get input until the end of the month. In fact, there are records for Mt. Clemens Area extending back to the 1800s. Weather Bureau sites, plus Uni. of Mich. (5 pm observation time) and White Lake 4 E (midnight to midnight - NWS office site): Other co-op sites, with morning observation times. Note that these go into the book as the temperatures for 7/25, but the highs occurred yesterday and the reported lows this morning:

Some much needed rainfall spreading into parts of northeastern Ohio. A number of locations have seen very little rainfall this month, with 0.18" at Burke Lakefront Airport, 0.21" at Akron Fulton International Airport, 0.50" at New Philadelphia Clever Field. Even the cooperative observer in Chardon has reported only 0.52" for the month, typically one of the wettest spots in northeast Ohio. Cleveland Hopkins International Airport and nearby Elyria - Lorain County Airport have picked up 0.79", while Ashtabula County Airport has seen 0.81".

A couple locations in far northern New York weren’t far from reaching record lows and record highs on consecutive days. Massena tied a record low of 47F yesterday, but fell 2F short of today’s record high. Plattsburgh missed a record low by 1F yesterday and missed a record high by 1F today.

Very impressive heat in southeast Lower Michigan today. Selfridge Air National Guard Base reached 98, its highest reading since 2012. 97 at Troy, Pontiac, and Ypsilanti (Willow Run). Flint and Coleman Young Airport topped out at 96. Detroit Metropolitan Wayne International Airport and Ann Arbor Municipal Airport both reached 95. Monroe reached 96, and even the traditional cool spot at Grosse Ile topped out at 95. Wonder what @michsnowfreak observed today? Looking at some backyard thermometers around Wyandotte, it looks like 97-98 was pretty common. Definitely a scorcher!

Extremely pleasant humidity levels corresponding to comfortable dewpoints in the 50s - a rarity in modern Detroit in mid to late July. A swamp cooler would probably work better than central air in such conditions. Under those atmospheric conditions, the heat index would be lower than the actual air temperature.

Extreme and dangerous heat across southeast Michigan, with mid and upper 90s common across the area. I'd be willing to bet the heat indices, which are a better measure of heat stress, are every bit as high today as in the 1934 heat wave.

According to NCEI, it looks 1955 & 1999 had the warmest mean maximum temperatures for New Jersey. They have the statewide average as 89.9F for 1955 & 90.0F for 1999.

There are also fewer stations today than those earlier periods, at least reported by xMacis. This month counts 36 stations, with an average maximum of 87.04F (after removing duplicated ThreadEx sites). In 1993, there were 44 stations, with an average maximum temperature of 87.75F (after removing duplicated ThreadEx stations). Not as big of a difference in the means as one might think. Of course, I haven't made any effort at "gridding" or areal averaging to account for disparate location in the two sets. But with low temperatures factored in, I would certainly expect 2025 to come in somewhere above 1993's 18th place average.

Current forecasts suggest the possibility of at least 5 consecutive days of 100F readings at Charlotte, which would match the longest streak there on record. Certainly, looks like a hot stretch coming up for the southeastern United States. Yes, it's hot there in the summertime, but this looks pretty impressive even for those areas.

Among locations with data for periods. And this is just for max temps. With lows factored in, 2025 might be as warm. Excluding the questionable Bridgehampton readings, most places are within about 1F of 1993 average maximum temperatures this July so far, while Central Park is almost 5F colder! It looks like Central Park went from a warm bias to a cold bias, making direct comparisons tricky. LGA 0.8F cooler JFK 0.9F cooler Westchester SAME Islip 0.5F cooler Riverhead 1.6F cooler Bridgehampton 4.7F cooler Central Park 4.8F cooler

Look how much hotter Central Park was than everywhere else in July 1993: Compare that to 2025:

Obviously, metrics like that are also affected by warm biased readings. 1993 is tied for warmest on record at EWR by summer mean average, even though the climate divisional average is only 28th (and tied with 2 other years). At Central Park, it is 4th hottest (tied with 2020 & 1983) but only tied for 25th hottest for the Coastal New York climate division.

Too much emphasis being placed on single sites (EWR, NYC) and not on the larger regional averages. Summer 1993 was tied with 1994 & 1901 for 28th warmest overall in northern New Jersey. For coastal New York, it is tied with 1995 for 25th warmest. As I have noted on multiple occasions, the HO-83 hygrothermometers had a warm bias of a good 1-1.5F, making a huge impact on rankings in that era. Nationally, it ranked as the 16th coldest on record, with many areas in the Intermountain West seeing their coldest summer since the NCEI dataset began in 1895.

Crazy to see so many places 5-6F above the normal for 30 days in the heart of summer, especially with the current elevated norms.

Among very long POR sites, Cedar Rapids, Iowa reached a daily record high minimum temperature (78F) with Baton Rouge, Louisiana tying its record high minimum (79F). Several other locations were close to records, with Moline, IL; Memphis, TN; and Tupelo, MS each matching their second warmest daily low. Looking at some observations this morning, Chicago and South Bend would each set new daily record high minimum temperatures if the current lows were to hold through the day. I didn't check anywhere else, but there's probably several more out there. Unfortunately, convection appears likely to spoil some of these low temperatures, especially at Chicago. South Bend might set a record even if there is convection there due to the high dewpoints. The current daily record high minimum there is 74F, whereas the low temperature this morning was 76F.

Certainly would have been a very pleasant July climate, which is a good thing in the pre-AC days. I always liked that Toronto, Canada has continuous records back to 1840. Seems to paint a similar picture, obviously Toronto being colder in general.

I know there was some discussion about PIT and AGC maybe running warm at times last year, but it definitely seems to have been corrected. Arguably running a little on the cool side this year compared to surrounding observations, especially AGC. The official tally might have this July cooler than last, but overall it's been a bit warmer just about everywhere in the region (especially with the overnight minima).